16318748719 has 64 divisors (see below), whose sum is σ = 21238497280. Its totient is φ = 12194012160.

The previous prime is 16318748711. The next prime is 16318748723. The reversal of 16318748719 is 91784781361.

It is a cyclic number.

It is not a de Polignac number, because 16318748719 - 2³ = 16318748711 is a prime.

It is a super-2 number, since 2×16318748719² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16318748719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16318748711) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22446334 + ... + 22447060.

It is an arithmetic number, because the mean of its divisors is an integer number (331851520).

Almost surely, 2^16318748719 is an apocalyptic number.

16318748719 is a deficient number, since it is larger than the sum of its proper divisors (4919748561).

16318748719 is a wasteful number, since it uses less digits than its factorization.

16318748719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 2032128, while the sum is 55.

The spelling of 16318748719 in words is "sixteen billion, three hundred eighteen million, seven hundred forty-eight thousand, seven hundred nineteen".